def find_file_index(self, paths, date):
dates = np.array([self.parse_date(path) for path in paths],
dtype='datetime64[s]')
mask = ~(dates <= date)
if mask.all():
msg = "No file for {}".format(date)
raise FileNotFound(msg)
before_dates = np.ma.array(dates, mask=mask, dtype='datetime64[s]')
return np.ma.argmax(before_dates)
def find_file(self, valid_date):
paths = np.array(self.paths) # Note: timeout cache in use)
bounds = locate.bounds(self.dates(paths), dt.timedelta(minutes=15))
pts = locate.in_bounds(bounds, valid_date)
found = paths[pts]
if len(found) > 0:
return found[0]
else:
raise FileNotFound("RDT: '{}' not found in {}".format(
valid_date, bounds))
def find_file(self, paths, user_date):
""" "Find file likely to contain user supplied date
.. note:: Search based on timestamp only
.. warning:: Not suitable for searching unparsable file names
"""
if isinstance(user_date, (dt.datetime, str)):
user_date = np.datetime64(user_date, "s")
dates = np.array([self.parse_date(path) for path in paths],
dtype="datetime64[s]")
mask = ~(dates <= user_date)
if mask.all():
msg = "No file for {}".format(user_date)
raise FileNotFound(msg)
before_dates = np.ma.array(dates, mask=mask, dtype="datetime64[s]")
i = _natargmax(before_dates.filled())
return paths[i]